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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.
Earth & Space Science
Weather and Climate
Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.
Environmental Issues
Fifth Grade
Check out this cool and free middle school science fair project idea on how to make a solar oven.
Environmental Issues
Seventh Grade
Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.
Ecology
Fourth Grade
It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.
Environmental Issues
Fourth Grade
A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.
Ecology
Middle School
In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.
Earth & Space Science
Elementary School
This science fair project idea explores how water and ice can change the form of rocks.
Geology
Elementary School
In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.
Astronomy
Fifth Grade
This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.
Ecology
Environmental Issues

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